From Singularity University's 2018 Summit, Ramez Naam recaps how far we've come and where we're headed with renewables. It's a collision of exponential technologies, policy, and economics that continue to erode costs and accelerate adoption for solar wind and storage.

Zeitgeist solar isn’t new materials like the mythical Graphene. It’s building on what we already have. A majority of solar production in the US, for example, is still synthesised through crystalline silicon panels – first grabbing sunlight in the 1950s. New tech in solar seems to be complimentary or facilitating what is in place already rather than ground breaking, future…